Past Events

Thursday, November 16, 2017 - 11:30am
Physics 298
Speaker: Aashish Clerk (University of Chicago)
Interest continues to grow in photonic analogues of topological electronic phases. In most cases, these systems are non-interacting, and have the same band structure and edge state structure as their fermionic counterparts. In this talk, I'll discuss recent theory work in my group showing how... Read More »
Tuesday, November 14, 2017 - 3:30pm
Raleigh, NC
Speaker: Yacine Mehtar Tani (Brookhaven National Lab)
The phenomenon of jet quenching in ultra-relativistic heavy ion collisions reveals to effect of substantial finial state interactions which cause QCD jets to lose energy to the quark-gluon plasma (QGP), mainly by induced gluon radiation. In standard analytic approaches to energy loss, jets are... Read More »
Wednesday, November 8, 2017 - 3:30pm
Physics 128
Speaker: Stephen Teitsworth (Duke Physics)
"Noise-driven dynamics in far-from-equilibrium systems" The dynamical behavior of many far-from-equilibrium systems is crucially impacted by the interplay of noise and deterministic degrees of freedom. Examples of noise-enabled dynamics occur throughout the natural sciences including biophysical... Read More »
Tuesday, November 7, 2017 - 3:30pm
Raleigh, NC
Speaker: Dr. Matt Sievert (Theoretical Division of Los Alamos National Laboratory)
Because parton distribution functions (PDFs) are measured at finite center-of-mass energies, they must always be extrapolated to high-energy asymptotics where x goes to zero. This extrapolation is especially important for the determination of sum rules, such as the contribution to the proton spin... Read More »
Thursday, November 2, 2017 - 10:00am
Physics 298
Speaker: Ashley Jones, NASA Goddard Space Flight Center
Electron microbursts are rapid bursts of precipitation in radiation belts of the Earth that occur on the scale of ~tens of ms. Studies suggest microbursts may be able to empty the radiation belts on the time scale of a day and are associated with chorus waves. We will go over the basics of... Read More »
Thursday, October 26, 2017 - 11:30am
Physics 298
Speaker: Dmitri Khveshchenko (UNC Chapel Hill)
We discuss higher dimensional generalizations of the 0+1-dimensional Sachdev-Ye-Kitaev (SYK) model. Unlike the previous constructions where multiple SYK copies would be coupled via some spatially short-range one- and/or q-particle random hopping processes, this study focuses on the algebraically... Read More »
Wednesday, October 25, 2017 - 3:30pm
Physics 128
Speaker: Ken Brown (Georgia Tech)
"Protecting Quantum Information" The interaction of a quantum system with its environment leads to decoherence and is the most important challenge facing the construction of a quantum computer. My research group studies two methods for reducing decoherence: quantum control and quantum... Read More »
Thursday, October 12, 2017 - 11:30am
Physics 298
Speaker: Giuseppe Calajo (TU Wien)
Slow-light waveguide QED refers to a regime where the maximal photonic group velocity is significantly reduced compared to free space. Such conditions could be achieved in one-dimensional photonic periodic structures such as photonic crystals, coupled-resonator arrays, modulated fibres, etc. In... Read More »
Wednesday, October 11, 2017 - 3:30pm
Physics 128
Speaker: Shailesh Chandrasekharan (Duke Physics)
"Quantum Critical Points: Bridges Across Energy Scales" In physics we often look for paradigms that unify physical phenomena at different energy scales. Quantum Critical Points (QCPs) provide such a paradigm by bridging concepts of phases and phase transitions of a physical system with notions of... Read More »
Tuesday, October 3, 2017 - 1:30pm
Physics 278
Speaker: Mayra Cervantes, Duke University
Predicted more than 43 years ago as an immediate consequence of the existence of neutral currents in neutrino-induced interactions, Coherent Elastic Neutrino-Nucleus scattering (CEVnS) had eludeddetection until very recently. I will discuss the recent results from the COHERENT collaboration that... Read More »